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Related Concept Videos

Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

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The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
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Somatosensory, Motor, and Association Cortex01:23

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The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
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Association Areas of the Cortex01:21

Association Areas of the Cortex

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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
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Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Neural Circuits01:25

Neural Circuits

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Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
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Somatosensation01:33

Somatosensation

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The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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Related Experiment Video

Updated: Mar 2, 2026

Reversible Cooling-induced Deactivations to Study Cortical Contributions to Obstacle Memory in the Walking Cat
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Obstacle coding in scene-selective cortices.

Dongheon Kham1, Yoonjung Lee2, Soojin Park1

  • 1Department of Psychology, Yonsei University, Seoul, Republic of Korea.

Behavioural Brain Research
|February 28, 2026
PubMed
Summary
This summary is machine-generated.

The occipital place area (OPA) brain region recognizes navigable paths by integrating scene and object information. It represents functional navigability, not just obstacles, for effective navigation.

Keywords:
FMRIObstacleOccipital place areaScene-selective regionsSpatial navigation

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Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Visual Perception

Background:

  • Navigating complex environments relies on identifying navigational constraints like obstacles.
  • The neural basis for representing path-object interactions in scenes is not well understood.

Purpose of the Study:

  • To investigate if scene-selective brain regions, specifically the occipital place area (OPA), encode path-object alignment and its navigational significance.
  • To determine how the OPA represents obstacles and their impact on navigation.

Main Methods:

  • Utilized functional magnetic resonance imaging (fMRI) across three experiments.
  • Employed multivoxel pattern classification and representational similarity analysis.
  • Tested decoding of obstacle presence and compared competing representational models.

Main Results:

  • The OPA successfully distinguished between obstructed and unobstructed paths based on path-object alignment.
  • Obstacle decoding in the OPA disappeared when high-level scene information was removed, unlike in early visual cortex.
  • Neural patterns in the OPA best reflected the availability of passage, indicating representation of functional navigability.

Conclusions:

  • The OPA integrates path and object information to represent action-relevant spatial structure.
  • The OPA's role extends to encoding flexible, interaction-defined navigational constraints.
  • This research clarifies the OPA's contribution to representing navigable space.